Search a number
-
+
444331231120 = 245731101253417
BaseRepresentation
bin1100111011101000011…
…01001000011110010000
31120110220012121020121201
412131310031020132100
524234442243343440
6540042320200544
744046641101540
oct6356415103620
91513805536551
10444331231120
1116149243a497
1272145769154
1332b91b2654a
1417711aa7320
15b85878319a
hex6774348790

444331231120 has 160 divisors (see below), whose sum is σ = 1230808651776. Its totient is φ = 145967616000.

The previous prime is 444331231103. The next prime is 444331231153. The reversal of 444331231120 is 21132133444.

It is a happy number.

It is a super-2 number, since 2×4443312311202 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1626652 + ... + 1880068.

Almost surely, 2444331231120 is an apocalyptic number.

444331231120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444331231120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (615404325888).

444331231120 is an abundant number, since it is smaller than the sum of its proper divisors (786477420656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444331231120 is a wasteful number, since it uses less digits than its factorization.

444331231120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253569 (or 253563 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 444331231120 its reverse (21132133444), we get a palindrome (465463364564).

The spelling of 444331231120 in words is "four hundred forty-four billion, three hundred thirty-one million, two hundred thirty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 31 35 40 56 62 70 80 101 112 124 140 155 202 217 248 280 310 404 434 496 505 560 620 707 808 868 1010 1085 1240 1414 1616 1736 2020 2170 2480 2828 3131 3472 3535 4040 4340 5656 6262 7070 8080 8680 11312 12524 14140 15655 17360 21917 25048 28280 31310 43834 50096 56560 62620 87668 109585 125240 175336 219170 250480 253417 350672 438340 506834 876680 1013668 1267085 1753360 1773919 2027336 2534170 3547838 4054672 5068340 7095676 7855927 8869595 10136680 14191352 15711854 17739190 20273360 25595117 28382704 31423708 35478380 39279635 51190234 54991489 62847416 70956760 78559270 102380468 109982978 125694832 127975585 141913520 157118540 179165819 204760936 219965956 255951170 274957445 314237080 358331638 409521872 439931912 511902340 549914890 628474160 716663276 793448627 879863824 895829095 1023804680 1099829780 1433326552 1586897254 1791658190 2047609360 2199659560 2866653104 3173794508 3583316380 3967243135 4399319120 5554140389 6347589016 7166632760 7934486270 11108280778 12695178032 14333265520 15868972540 22216561556 27770701945 31737945080 44433123112 55541403890 63475890160 88866246224 111082807780 222165615560 444331231120